Muse Spark 1.3 vs Claude Haiku 5.5 vs Gemini 3.8 Flash
Claude Haiku 5.5 comes out ahead, 83 to 74 and 72 on our weighted score, and it is the cheaper option too.
MetaMuse Spark 1.3
72/100- ECI157.4
- Price$1.25 / $4.25
- Context1.05M
- Our pick
AnthropicClaude Haiku 5.5
83/100- ECI160.4
- Price$0.10 / $0.50
- Context1M
GoogleGemini 3.8 Flash
74/100- ECI157.6
- Price$0.75 / $3.75
- Context1.05M
Claude Haiku 5.5 is our pick
Claude Haiku 5.5 is the better all-round choice, scoring 83/100 against Gemini 3.8 Flash (74) and Muse Spark 1.3 (72). It leads on capability and price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.
- CapabilityClaude Haiku 5.5Capabilities Index (ECI): Claude Haiku 5.5 160.4 · Gemini 3.8 Flash 157.6 · Muse Spark 1.3 157.4
- Lowest priceClaude Haiku 5.5Claude Haiku 5.5 $0.20 · Gemini 3.8 Flash $1.50 · Muse Spark 1.3 $2.00 per 1M tokens (3:1 blend)
- Longest contextMuse Spark 1.3 and Gemini 3.8 FlashMuse Spark 1.3 1,048,576 · Gemini 3.8 Flash 1,048,576 · Claude Haiku 5.5 1,000,000 tokens
- Widest inputsMuse Spark 1.3 and Gemini 3.8 FlashMuse Spark 1.3: Text, Images, PDFs, Audio, Video · Claude Haiku 5.5: Text, Images, PDFs · Gemini 3.8 Flash: Text, Images, PDFs, Audio, Video
- Self-hostingNo open weightsAll three are available only through APIs
| Measure | Weight | Muse Spark 1.3 | Claude Haiku 5.5 | Gemini 3.8 Flash |
|---|---|---|---|---|
| CapabilityCapabilities Index (ECI) | 50% | 86 | 89 | 86 |
| Price | 25% | 34 | 80 | 40 |
| Inputs & features | 15% | 100 | 80 | 100 |
| Context window | 10% | 61 | 60 | 61 |
| Overall | 100% | 72/100 | 83/100 | 74/100 |
Every spec in one table
Highlighted cells lead their row. Dashes mean the data is not published.
| Specification | Muse Spark 1.3Meta | Claude Haiku 5.5Anthropic | Gemini 3.8 FlashGoogle |
|---|---|---|---|
| Capability | |||
| Capabilities Index (ECI) | 157.4 | 160.4 (best) | 157.6 |
| ECI rank | #24 of 165 | #14 of 165 (best) | #23 of 165 |
| GPQA DiamondGraduate-level science questions | — | 89.7% | 95.4% (best) |
| FrontierMath Tiers 1–3Research-level mathematics | 74.4% | 75.1% (best) | 68.4% |
| OTIS Mock AIME 2024–2025Competition mathematics | 99.2% (best) | 98.9% | 98.9% |
| SimpleQA VerifiedShort factual questions | — | 23.8% | 69.7% (best) |
| Price per million tokens | |||
| Input | $1.25 | $0.10 (best) | $0.75 |
| Output | $4.25 | $0.50 (best) | $3.75 |
| Cached input | $0.15 | $0.01 (best) | $0.075 |
| Blended (3:1) | $2.00 | $0.20 (best) | $1.50 |
| Long-context rate | Same rate | Over 100K: $0.50 / $2.50 | Same rate |
| Price source | Official Meta API | Official Anthropic API | Official Google API |
| Limits | |||
| Context window | 1,048,576 tokens (best) | 1,000,000 tokens | 1,048,576 tokens (best) |
| Max output | 131,072 tokens (best) | 128,000 tokens | 65,536 tokens |
| Inputs and features | |||
| Text | Yes | Yes | Yes |
| Images | Yes | Yes | Yes |
| PDFs | Yes | Yes | Yes |
| Audio | Yes | No | Yes |
| Video | Yes | No | Yes |
| Reasoning | Yesminimal · low · medium · high · xhigh · max | Yeslow · medium · high · xhigh · max | Yeslow · medium · high |
| Tool calling | Yes | Yes | Yes |
| Structured output | Yes | Yes | Yes |
| Availability | |||
| Weights | Proprietary | Proprietary | Proprietary |
| API model ID | muse-spark-1.3 | claude-haiku-5-5 | gemini-3.8-flash |
| API providers | 17 | 33 (best) | 32 |
| Released | Sep 2, 2026 | Oct 7, 2026 | Sep 2, 2026 |
| Knowledge cutoff | — | Jun 2026 | — |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- Muse Spark 1.3$21.00
- Claude Haiku 5.5$2.00
- Gemini 3.8 Flash$15.00
Which should you choose?
Which is better: Muse Spark 1.3, Claude Haiku 5.5 or Gemini 3.8 Flash?
Claude Haiku 5.5 is the better all-round choice, scoring 83/100 against Gemini 3.8 Flash (74) and Muse Spark 1.3 (72). It leads on capability and price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.
Which is cheaper, Muse Spark 1.3, Claude Haiku 5.5 or Gemini 3.8 Flash?
Claude Haiku 5.5 is cheaper at $0.10 input / $0.50 output per million tokens (official Anthropic API price). Gemini 3.8 Flash costs $0.75 input / $3.75 output per million tokens (official Google API price); Muse Spark 1.3 costs $1.25 input / $4.25 output per million tokens (official Meta API price). At a typical mix of three input tokens to one output token, that is $0.20 per million tokens for Claude Haiku 5.5 versus $1.50 for Gemini 3.8 Flash (7.5× as much) and $2.00 for Muse Spark 1.3 (10× as much).
Which scores higher on benchmarks?
Claude Haiku 5.5 scores higher on the Capabilities Index (ECI): Claude Haiku 5.5 160.4 (#14 of 165), Gemini 3.8 Flash 157.6 (#23 of 165) and Muse Spark 1.3 157.4 (#24 of 165). The confidence ranges of the top two overlap (157.3–163.8 vs 155.5–160.9), so treat the gap as small. On individual benchmarks: FrontierMath Tiers 1–3 — Claude Haiku 5.5 75.1%, Muse Spark 1.3 74.4%, Gemini 3.8 Flash 68.4%; OTIS Mock AIME 2024–2025 — Muse Spark 1.3 99.2%, Claude Haiku 5.5 98.9%, Gemini 3.8 Flash 98.9%.
Which is better for coding?
There are no published SWE-bench Verified results for Muse Spark 1.3, Claude Haiku 5.5 and Gemini 3.8 Flash yet, so there is no like-for-like coding score. On overall capability, Claude Haiku 5.5 leads, which tends to carry over to coding, but test on your own codebase. All three support tool calling for agent workflows.
Which has the bigger context window?
Muse Spark 1.3 and Gemini 3.8 Flash have the largest context windows (1,048,576 and 1,048,576 tokens), against 1,000,000 for Claude Haiku 5.5. Maximum output per response: Muse Spark 1.3 up to 131,072, Claude Haiku 5.5 up to 128,000, Gemini 3.8 Flash up to 65,536 tokens.
Which can read images, PDFs, audio or video?
Muse Spark 1.3 accepts text, images, PDFs, audio and video; Claude Haiku 5.5 accepts text, images and PDFs; Gemini 3.8 Flash accepts text, images, PDFs, audio and video. Muse Spark 1.3 handles the widest range of inputs.
Are any of these open source?
No. Muse Spark 1.3, Claude Haiku 5.5 and Gemini 3.8 Flash are proprietary and only available through APIs and apps.
Which is newer?
Claude Haiku 5.5 is the newest, released Oct 7, 2026. Muse Spark 1.3 came out Sep 2, 2026; Gemini 3.8 Flash came out Sep 2, 2026. Knowledge cutoff: Claude Haiku 5.5 Jun 2026.
How do you decide the winner?
Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Nov 2, 2026.
Related comparisons
- Muse Spark 1.3 vs GLM-5.3Z.ai (Zhipu) · ECI 156.2
- Muse Spark 1.3 vs Grok 4.6xAI · ECI 156.9
- Muse Spark 1.3 vs Qwen3.8 MaxAlibaba (Qwen) · ECI 158.0
- Claude Haiku 5.5 vs DeepSeek V4.1 Flash 1017DeepSeek · ECI 158.8
- Claude Haiku 5.5 vs GPT-6 LunaOpenAI · ECI 156.8
- Claude Haiku 5.5 vs GLM-5.3-FlashZ.ai (Zhipu) · ECI 153.2
